What is SQL?

SQL stands for Structured Query Language. SQL is used to store, query, modify, manipulate and retrieve data stored in a relational database. Usually pronounced as “ess-que-ell”. According to ANSI (American National Standards Institute), it is the language for relational database management systems.

All relational database systems (RDBMS) accept the use of SQL (MS Access, MySQL, Oracle DB, Sybase, Postgres, SQL Server) as a data-centered language.

Source: Datcatchup

Brief History of SQL

SQL was first introduced by Edgar F. Codd and developed in 1970s by IBM researchers Donald Chamberlain and Raymond F. Boyce.

SQL has different proprietary extensions for different RDBMS like MySQL for Oracle database and T-SQL for Microsoft SQL Server.

SQL syntax - SELECT, FROM, WHERE

Most common used SQL commands are “SELECT”, “FROM”, “WHERE” and so on.

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